body {
    margin: 0;
    padding: 0;
    background-color: #000;
    color: #fff;
    overflow: hidden;
}

ul, li {
    list-style: none;
    margin: 0;
    padding: 0;
}

ul {
    padding-left: 24px;
    border-left: 1px dashed #dddddd;
}

b {
    color: #3ae63a;
}

.box {
    font-size: 14px;
    line-height: 1.5;
    position: relative;
}

.box > ul {
    display: none;
}

.box.box__open > ul {
    display: block;
}

.ellipsis__hide {
    display: none;
}

.box-pointer {
    position: absolute;
    cursor: pointer;
    display: inline-block;
    text-align: center;
    width: 14px;
    left: -14px;
    color: red;
    font-weight: bold;
}

.box-bracket {
    display: inline-block;
}

.textarea-wrap {
    position: relative;
    width: 500px;
    height: 100vh;
    float: left;
    box-sizing: border-box;
}

.textarea-wrap > textarea {
    box-sizing: border-box;
    width: 492px;
    height: 100%;
    font-size: 16px;
}

#divider {
    position: absolute;
    width: 8px;
    height: 100%;
    top:0;
    right: 0;
    cursor: ew-resize;
}

#root {
    width: calc(100% - 500px);
    float: right;
    overflow: auto;
    padding-left: 16px;
    box-sizing: border-box;
    height: 100vh;
}

#actions {
    position: fixed;
    top: 0;
    right: 24px;
}

.action__active {
    color: red;
}